"Our employees play a pivotal role in championing the needs of our customers and communities," said NiSource President and CEO Joe Hamrock. "It's an honor to receive continued industry and national recognition from Forbes."

About the ranking

The America’s Best Large Employers list ranks the top 500 employers across 25 different industries. About 30,000 employees at companies with at least 1,000 workers were recruited and surveyed from thousands of sources for maximum representation.

Employees were asked more than 30 detailed questions about working conditions and how likely they were to recommend their employer to someone else.